So after doing several more tests of trying to find my stable core offset and memory offset settings I started to notice that my GPU emits this slight squealing or low pitched whine. The thing that scares me is that my card is water cooled under a EK Acetal+Nickel block. It only begins to make this noise when I run a benchmark such as Heaven, 3D Mark 11 or FurMark. Any idea what this noise could be?